Practice No. System Questions and Answers

• The sum of four consecutive counting numbers is 154. Find the smallest number?
• The ages of Geeta, Meera and Tina are in the ratio of 6:4:7 respectively. If the sum of their ages is 34 years, what is Meera’s age? 
• A Student was asked to add 8 and subtract 5 from a number. By mistake, he added 5 and subtracted 8. If his answer is 11, what should be the correct answer?
• If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
• Arvind's age after 19 years will be 67 years. Ravi is 4 years older than Arvind. The ratio of present ages of Samar and Ravi is 9:13. Find the age of Samar...
• A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
• The sum of three consecutive odd natural numbers each divisible by 3 is 81. Which number is the largest number among the three numbers?
• The ratio of Raj’s to Simran’s salary is 3: 5. If Simran’s salary is increased by 25%, her total salary becomes Rs. 54,000. What is the s...
• How many Zeros can be formed by multiplying 10×20×30×40×…………….× 100
• The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
• In a kilometre race, A beats B by 30 metres or 6 seconds. Find the time taken by A to finish the race?
• The sum of four consecutive even numbers is 108. What is the sum of the squares of these numbers? 
• The value of a machine depreciates every year by 12%. What will be its value after 2 year if its value is Rs 19,650?
• In a group of three numbers first is double of second and half of third. The average of three numbers is 56. Find the difference between the first number a...
• If (3 - 4/(1+ 2/(3+ 1/(2+1/3))))th part of a journey takes 45 minutes, then to complete 4/5th of that journey, it will take:
• Uttarakhand Government accomplished a Golden Triangular Project. Under this Project, the State Government Laid down 6 lane roads connecting the three citie...
• Happy and Sad are running on a circular track of radius 245 metres. Happy can complete a round in 200 seconds and the speed of Sad is twice the speed of Ha...
• The number 611611611611611611611 is 
• 180 is divided into two parts in such a way that the fifth part of the first part and the fourth part of the second are in the ratio 4:5. Second part is ho...
• Divisor is 7 times of Quotient and 3 times of its remainder. If the remainder is 7. Find the dividend?
• Aakriti’s present age is 5 times of Poonam’s age. The sum of the present ages of Aakriti, Poonam and Aakriti’s father is 86 yrs. Aakriti’s father�...
• In a class, 1/3 of the students are girls and rest are boys. If 3/5 of the girls and 1/5 of the boys are absent, what part of the total number of students ...
• A girl found the answer for the question “subtract the sum 1/4 and 1/8 from unity and express the answer in decimals” as 1.5. The percentage of error i...
• In a class, 2/5 of the students are girls and rest are boys. If  4/9 of the girls and 1/3 of the boys are absent, what part of the total number of stu...
• In a tennis tournament, each player played one game with all the other players. How many players participated in the tournament if they played 300 games in...
• Arvind's age after 19 years will be 67 years. Ravi is 4 years older than Arvind. The ratio of present ages of Samar and Ravi is 9:13. Find the age of Samar...
• A waiter income consist of his salary and tips. During one week his tips were 4/5 of his salary. What portion of his income came from tips?
• Rs 720 is to be divided among P, Q and R so that P gets 3/5 of Q’s share and R gets 1/3 of P’s share. Share of R is:
• A farmer wants to divide Rs 2,81,800 between his sons , who are 17 and 19 years old respectively, in such a way that the sum divided at the rate of 12% per...
• The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
• If the numerator of a fraction is increased by 300% and the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?
• The sum of three consecutive odd natural numbers each divisible by 3 is 81. Which number is the largest number among the three numbers?
• 22           44           176         1078       8448...
• 16           4              2              1.5          1              1.875...
• 15           15           60           540         8650...
• 4096         2048       514      64           4...
• 4              14           44           124         404...
• If a = 12, b = 23, c = 34, ............... z = 2627 . How many zeros are formed after multiply a × b × c × ........... × z?...
• Find a positive number which when increased by 26 is equal to 120 times the reciprocal of the number?
• The remainder obtained when (47³ + 35³) is divided by 41 is